There are no nucleic acid test strips available, only antigen detection strips. The antigen test c is the control, and this test is valid when there is a clear band at c. The reaction at t is then observed.
Antigen test t is the test group, positive people have a clear band at c, but also have a band here, which may be a clear band or a lighter color band.
When there is a clear band at c and no band at t, the test result is negative. When there is no band at c, this suggests that the test is invalid because the control is not showing up.
Antigen test kits are often used in colloidal gold assay, which utilizes the principle of specific binding of antigen and antibody to detect whether the organism is infected by the virus or not, and is relatively easy to use.
If the patient is accompanied by other symptoms, it is recommended to go to the hospital in time for further examination and treatment, and to take measures to prevent infection.